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Eaton.com/bussmannseries
TechnicalData1018
Effective May 2016
Fusetron™ 600 V Class RK5
FRS-R — 600 Vac/300 Vdc, 65-600 A,
dual element, time-delay fuses
Recommended fuse blocks
Fuse amps 1-Pole 2-Pole 3-Pole
70-100 RM60100-1CR RM60100-2CR RM60100-3CR
110-200 RM60200-1CR RM60200-2CR RM60200-3CR
225-400 RM60400-1CR RM60400-2CR RM60400-3CR
450-600 RM60600-1CR RM60600-2CR RM60100-3CR
For additional information on the RM600 volt fuse blocks, see data sheet
No. 10489.
Fuse reducers for class R fuses
Equipment
fuse clips
Desired fuse
(case) size
Catalog numbers
(pairs) 600 V
200 A 100 A NO.2621-R
400 A 100 A NO.2641-R
200 A NO.642-R
100 A NO.2661-R
600 A 200 A NO.2662-R
400 A NO.2664-R†
†
Single reducer only (pair not required).
For additional information on Class R fuse reducers, see data
sheet No. 1118.
Prosp.
S.C.C.
Let-through current
(apparent RMS symmetrical vs. fuse rating)
100A 200A 400A 600A
5000 3000 4000 5000 5000
10,000 4000 5000 9000 10,000
15,000 4000 6000 10,000 14,000
20,000 5000 7000 11,000 15,000
25,000 5000 7000 12,000 17,000
30,000 5000 8000 13,000 18,000
35,000 5000 8000 13,000 18,000
40,000 6000 9000 14,000 19,000
50,000 6000 9000 14,000 20,000
60,000 6000 10,000 15,000 22,000
70,000 7000 11,000 17,000 23,000
80,000 7000 12,000 17,000 23,000
90,000 7000 12,000 17,000 24,000
100,000 8000 13,000 18,000 25,000
150,000 9000 14,000 21,000 27,000
200,000 9000 16,000 23,000 32,000
400000
9000
8000
7000
7000
6000
6000
300000
200000
100000
5000
4000
4000
90000
3000
2000
1000
3000
70000
80000
70000
60000
A
50000
60000
200000
20000
2000
40000
100000
50000
10000
5000
1000
30000
90000
80000
40000
9000
8000
30000
20000
10000
600A
400A
200A
100A
Amp rating
Prospective short-circuit current - symmetrical RMS amps
Instantaneous peak let-through current in amps
0.1
1
10
100
300
1000
10,000
0.01
100
20,000
Time in seconds
RMS symmetrical current in amps
Amp rating
20
15A
30A
60A
100A
200
400
600
Time-current curves - average melt
Current-Limitation curves
Current-limiting effects